I am obviously the most vocal advocate of Hottop automation around here. BT, ET, Scotch-Brite scour pad as filter, TC4 + HTC, Variac, multiple thermocouples on motor, electronics area, aluminum foil on the front glass, started reversed air flow ultimate HT modification... All the way baby. I really enjoy work on modifications itself, so I understand that my opinion should be discounted. But I will be happy to help along if you decide to go automation route.
Cheers,
Miroslav